[英]How to add text to a plotly boxplot in r
我想标记图表上显示的异常值。 用plotly可以做到吗?
我图的代码在这里:
library(plotly)
set.seed(1234)
plot_ly(y = rnorm(50), type = 'box') %>%
add_trace(y = rnorm(50, 1)) %>%
layout(title = 'Box Plot',
xaxis = list(title = "cond", showgrid = F),
yaxis = list(title = "rating"))
目前尚不清楚您尝试了什么,哪些不起作用,但是识别异常值的一种方法是使用boxplot.stats()
,然后可以使用该信息添加注释。
library(plotly)
set.seed(1234)
d <- rnorm(50)
d2 <- rnorm(50, 1)
plot_ly(y = d, type = 'box') %>%
add_trace(y = d2) %>%
layout(title = 'Box Plot',
xaxis = list(title = "cond", showgrid = F),
yaxis = list(title = "rating"),
annotations = list(
x = -0.01,
# use boxplot.stats() to get the outlier's y coordinate
y = boxplot.stats(d)$out,
text = "Outlier",
showarrow = FALSE,
xanchor = "right"
)
)
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